描述
ABB REF543KB127AAAA是一款馈线终端，主要用于保护、控制、测量和监视中压电网。以下是其产品详情：
功能特点
保护功能：具有过流保护、速断保护、过负荷保护等多种保护功能，可针对不同故障类型快速准确动作，支持中性点不接地网络、消弧线圈接地网络和部分接地网络等多种网络类型，还可用于中型三相异步电机及无功功率补偿并联电容器组的保护和控制。
控制功能：可实现对中压馈线的远程控制，如合闸、分闸操作，同时能实时监测和控制开关状态。
测量功能：能对电流、电压等电气参数进行实时测量和显示，为运行人员提供准确数据参考。
监督功能：通过内部传感器和测量模块，对中压馈线实时监督，及时发现异常并触发警报，有助于预防事故。
PLC功能：提供大量PLC功能，可将变电站自动化所需的多种自动化和顺序逻辑控制功能集成在一个装置内，提高系统整体效率和可靠性。
通信功能：支持SPA总线规约、LON总线规约、IEC 60870-5-103规约等多种通信标准，还可通过SPA-ZC 400和SPA-ZC 302分别支持IEC 61850和Profitbus DPV1协议，能与各种上层设备无缝连接，实现数据实时传输和共享。
硬件规格
输入输出：拥有25个开关量输入和18个出口继电器，可灵活连接外部设备，满足不同应用场景下的信号输入和控制输出需求。
产品优势
适应性强：能与单母线、双母线和双机系统等各种开关装置结合使用，适应多种中压网络应用场景。
通信灵活：支持多种通信协议，可方便地与其他系统进行数据交互和集成，便于实现变电站自动化系统的整体通信架构。
功能集成度高：将保护、测量、控制、状态监视等多种功能集成于一体，减少了设备数量，降低了系统复杂度和成本。
外观尺寸
尺寸小巧：产品尺寸为140mm×90mm×70mm，体积小、重量轻，安装方便，便于集成到现有电力系统中，无需对安装空间进行大幅改造。
技术参数
工作电压：24-250V AC/DC。
额定电流：可达63A。
保护等级：IP20。
频率范围：50/60Hz。
响应时间：小于50ms。
精度等级：5P10，确保在各种运行条件下都能进行精确测量和可靠运行。
应用领域
电力系统：广泛应用于电力系统的中压馈线保护和控制，能在馈线发生短路、接地故障或其他异常情况时，快速切除故障，保护电力系统稳定运行。
ABB REF543KB127AAAA is a feeder terminal,mainly used for protection,control,measurement and monitoring of medium voltage power grid.The following are its product details:
Functional features
Protection function:It has multiple protection functions such as overcurrent protection,quick-break protection,overload protection,etc.It can quickly and accurately act on different fault types,supports multiple network types such as neutral point ungrounded network,arc suppression coil grounded network and partial grounding network,and can also be used for the protection and control of medium-sized three-phase asynchronous motors and reactive power compensation parallel capacitor groups.
Control function:It can realize remote control of medium voltage feeders,such as closing and opening operations,and can monitor and control the switch status in real time.
Measurement function:It can measure and display electrical parameters such as current and voltage in real time,providing accurate data reference for operators.
Supervision function:Through internal sensors and measurement modules,medium voltage feeders can be monitored in real time,abnormalities can be detected in time and alarms can be triggered,which helps prevent accidents.
PLC function:It provides a large number of PLC functions,which can integrate various automation and sequential logic control functions required for substation automation into one device,improving the overall efficiency and reliability of the system.
Communication function:supports multiple communication standards such as SPA bus protocol,LON bus protocol,IEC 60870-5-103 protocol,and can also support IEC 61850 and Profitbus DPV1 protocols through SPA-ZC 400 and SPA-ZC 302 respectively,and can seamlessly connect with various upper-layer devices to achieve real-time data transmission and sharing.
Hardware specifications
Input and output:With 25 switch inputs and 18 output relays,it can flexibly connect external devices to meet the signal input and control output requirements in different application scenarios.
Product advantages
Strong adaptability:It can be used in combination with various switch devices such as single bus,double bus and dual machine systems,and adapt to various medium voltage network application scenarios.
Flexible communication:Supports multiple communication protocols,can easily interact and integrate data with other systems,and facilitates the realization of the overall communication architecture of the substation automation system.
High functional integration:Integrates multiple functions such as protection,measurement,control,and status monitoring into one,reducing the number of devices,system complexity,and cost.
Appearance size
Small size:The product size is 140mm×90mm×70mm,with small size,light weight,and easy installation.It is easy to integrate into the existing power system without major modifications to the installation space.
Technical parameters
Working voltage:24-250V AC/DC.
Rated current:up to 63A.
Protection level:IP20.
Frequency range:50/60Hz.
Response time:less than 50ms.
Accuracy level:5P10,ensuring accurate measurement and reliable operation under various operating conditions.
Application field
Power system:Widely used in medium-voltage feeder protection and control of power systems,it can quickly remove faults when short circuits,ground faults,or other abnormal conditions occur in the feeder,protecting the stable operation of the power system.
